fabric dye recipe

i was watching the program the other day on pbs. you were dyeing fabric. and gave a formula or the amount needed for a 12 inch square of fabric.

then said that to dye a 24 inch square - you would need to double the recipe. just to remind you - that is incorrect. a 24 inch square has a surface a 4 times larger than a 12 inch square. and you would need to make 4 times the recipe of dye to obtain the same color and value for a 24 inch square as for the 12 inch square. ckquilter

hi adriene
even if the dye process is based on weight of the fabric - a 24" square will weigh 4 times as much as a 12"square . and thus to achieve the same
color, and intensity of color - for a 24" square you need 4 times as much dye as for a 12" square.
ckquilter